Systems Integration & Production Engineer

Duties and Responsibilities: End-to-End Exchange Architecture: Lead the strategic planning, architectural design, building, and deployment of Microsoft Exchange Server infrastructure in both integration labs and active production environments. Tier 3 Escalation Support: Serve as the ultimate escalation point for complex messaging and collaboration failures in production; perform deep-dive root cause analysis on highly classified networks. Patch Compliance & IAVA Testing: Conduct Information Assurance Vulnerability Alert (IAVA) testing on Exchange and System Center suites in the lab to validate that security patches do not impede production functionality before deployment. Cross-Domain Mail Flow: Maintain, configure, and optimize end-to-end mail flow across separated networks connected via specialized Email Guards; troubleshoot live operational routing anomalies. Automation & Monitoring: Write, maintain, and execute advanced automation scripts utilizing standard PowerShell and Exchange management cmdlets to automate production monitoring, health checks, and simulated mail flow. Workforce Mentorship & Documentation: Author and maintain comprehensive standard operating procedures (SOPs), deployment guides, and knowledge-base articles; provide technical training and guidance to Tier 1 and Tier 2 system administrators. DOD365 & DISA Troubleshooting Liaison: Assist enterprise users with complex DOD365-Joint and DOD365-SEC access issues. Gather technical data and collaborate directly with Defense Information Systems Agency (DISA) technicians to isolate, reproduce, and determine the scope of cloud-tenant anomalies impacting our local workforce (Note: Cloud tenant administration is managed externally).Infrastructure Integration: Configure and manage essential infrastructure dependencies required for production Exchange operations, including Active Directory (AD), Public Key Infrastructure (PKI), Group Policies, and Windows Server environments.

Education: Bachelor's degree in Systems Engineering, Computer Science, Information Technology, or a related field (or equivalent combination of education, technical training, and military/work experience).

Experience: Minimum of 5-8 years of direct experience with Microsoft Exchange Server engineering, Windows Server administration, and enterprise-level production support.

Security Clearance: Active Top Secret/SCI security clearance is required. U.S.

Citizenship: Required due to the nature of the classified work environment.

Required Skills & Technical Competencies: Enterprise Messaging: Deep technical expertise in Microsoft Exchange Server architecture, database availability groups (DAG), transport pipelines, and client access protocols in large-scale production environments. Tier 3 Troubleshooting: Advanced diagnostics capability for complex system integration, identity management, and cross-domain communication failures. Directory & Security Infrastructure: Strong proficiency with Active Directory (identity management, schema extensions, replication), PKI (certificate lifecycle, encryption, signing), and Windows Server operating systems. Advanced Scripting: Mastery of PowerShell engineering, specifically utilizing Exchange management cmdlets and legacy cmdlets to build test scripts and custom monitoring frameworks. Technical Writing: Demonstrated experience creating clear deployment, migration, diagrams, and troubleshooting documentation for down-stream operations teams. Cloud-Liaison Capabilities: Strong analytical skills to diagnose client-side connectivity or authentication issues with Microsoft 365 / DOD365 enclaves, coupled with the ability to clearly articulate technical symptoms to external DISA support teams.

Preferred Certifications & Experience: Advanced Exchange Engineering: Proven track record of executing full-lifecycle Microsoft Exchange upgrades, schema updates, migrations, and complex disaster recovery procedures.